//
//  IQRootControllerConfiguration.swift
//  https://github.com/hackiftekhar/IQKeyboardManager
//  Copyright (c) 2013-24 Iftekhar Qurashi.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import UIKit

@available(iOSApplicationExtension, unavailable)
@MainActor
internal struct IQRootControllerConfiguration {

    let rootController: UIViewController
    let beginOrigin: CGPoint
    let beginSafeAreaInsets: UIEdgeInsets
    let beginOrientation: UIInterfaceOrientation

    init(rootController: UIViewController) {
        self.rootController = rootController
        beginOrigin = rootController.view.frame.origin
        beginSafeAreaInsets = rootController.view.safeAreaInsets

        let interfaceOrientation: UIInterfaceOrientation
        #if swift(>=5.1)
        if #available(iOS 13, *) {
            if let scene = rootController.view.window?.windowScene {
                interfaceOrientation = scene.interfaceOrientation
            } else {
                interfaceOrientation = .unknown
            }
        } else {
            interfaceOrientation = UIApplication.shared.statusBarOrientation
        }
        #else
        interfaceOrientation = UIApplication.shared.statusBarOrientation
        #endif

        beginOrientation = interfaceOrientation
    }

    var currentOrientation: UIInterfaceOrientation {
        let interfaceOrientation: UIInterfaceOrientation
        #if swift(>=5.1)
        if #available(iOS 13, *) {
            if let scene = rootController.view.window?.windowScene {
                interfaceOrientation = scene.interfaceOrientation
            } else {
                interfaceOrientation = .unknown
            }
        } else {
            interfaceOrientation = UIApplication.shared.statusBarOrientation
        }
        #else
        interfaceOrientation = UIApplication.shared.statusBarOrientation
        #endif
        return interfaceOrientation
    }

    var isReady: Bool {
        return rootController.view.window != nil
    }

    var hasChanged: Bool {
        return !rootController.view.frame.origin.equalTo(beginOrigin)
    }

    @discardableResult
    func restore() -> Bool {
        if !rootController.view.frame.origin.equalTo(beginOrigin) {
            // Setting it's new frame
            var rect: CGRect = rootController.view.frame
            rect.origin = beginOrigin
            rootController.view.frame = rect
            return true
        }
        return false
    }
}
